Historical clue formulations

• They may be held during the national anthem — 2023-09-02
• Parts of hats that are tipped — 2022-07-18
• Hat tips — 2021-07-17
• Hat features — 2017-06-09
• Derby features — 2012-12-23
• Fezzes' lack — 2008-11-12
• Derby features — 2005-10-05
• 55-Across's lacks — 2004-08-13
• Fedora parts — 2000-04-12